LNTH Temperature Humidity Test Chamber Manufacturer

LNTH Temperature Humidity Test Chamber

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High and low temperature humidity test chamber is commonly used for quality inspection and material screening of electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, lamps, building materials, etc.

Reference Standards
1. China standards

GB/T2423.1-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Tests A: Cold
GB/T2423.2-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Tests B: Dry heat
GB/T2423.3-2016 Environmental Testing--Part 2:Testing Method--Test Cab: Damp Heat, Steady State
GB/T2423.4-2008 Electronic Products Environmental Test Part 2: Test Db: Alternating Humidity and Heat Test Method
GJB 150.3A-2009 Environmental Test Method of Military Equipment Laboratory Part 3: High Temperature Test
GJB 150.4A-2009 Environmental Test Method of Military Equipment Laboratory Part 4: Low Temperature Test
GJB 150.9A-2009 Environmental Test Method of Military Equipment Laboratory Part 9: Wet Heat Test

2. International standards

IEC 60068-2-1: 2007 Environmental Test Part 2-1: Test A: Low Temperature
IEC 60068-2-2: 2007 Environmental Test Part 2-2: Test B: Dry Heat
IEC 60068-2-78 Ed. 2.0 b:2012 Environmental Testing - Part 2-78: Tests - Test Cab: Damp Heat, Steady State
IEC 60068-2-30 Environmental testing – Part 2-30: Tests – Test Db: Damp heat, cyclic (12 h 12 h cycle)

3. Laws and regulations

Manufacturing standards: GB/T 10586-2006 Specifications for damp heat testing chambers and GB/T10592-2008 Specification for low/high temperature test chambers.
Test standards: GB/T5170.2-2017 Inspection methods for environmental testing equipment -- Part 2: Temperature testing equipment and GB/T5170.5-2016 Inspection methods for environmental testing equipment for electric and electronic products -- Part 5: Damp heat testing equipment
Metrological verification standard JJF1101-2019 Calibration Specification for Environmental Testing Equipment for Temperature and Humidity Parameters

Specifications

Model		LNTH262			LNTH420			LNTH1000
Effective Volume (L)		262			420			1000
Temp. Range (℃)	Min	-20	-40	-70	-20	-40	-70	-20	-40	-70
	Max	150 (or high temperature to 180℃)
Humidity range (%HR)		20～98%RH (20℃～85℃Within temperature range)
Temp. fluctuation (℃)		≤±0.5
Temp. deviation (℃)		±2.0
Humidity deviation		>75%RH:≤ 2,-3%RH；≤75%RH:≤±5%RH
Humidity fluctuation (℃)		≤±3%RH
Heating rate		20℃～ 150℃			20℃～ 150℃			20℃～ 150℃
		≤50min			≤50min			≤50min
Cooling rate		20℃～-20℃ Cooling rate≤45, min 20℃～-40℃ Cooling rate≤70, min 20℃～-70℃ Cooling rate≤90, min
Internal Dimensions(mm)	w	700			700			1000
	h	750			750			1000
	d	500			800			1000
External dimensions(mm) (excluding protrusions)	W	900			900			1200
	H	1810			1810			2060
	D	1460			1760			1960
Refrigerant and refrigeration mode		R404A/R23 (for-70℃)
		Mechanical compression refrigeration, air/water cooling
Monitor		7.0 inch, TFT color LCD Monitor
Power supply		AC 380V (±10%), frequency: 50±0.5Hz
Maximum power (not the sum of all power) (KW)		6	7	10	7.5	8.5	10	13.8	15.4	18
Maximum current (A)		12	14	20	14	18	20	22	25	38
Weight (Kg)		400	410	490	540	550	600	750	760	930